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levacccp [35]
3 years ago
14

What are two ways variation in the trait could be introduced into the population?

Biology
1 answer:
Cerrena [4.2K]3 years ago
3 0

A single mutation can have a large effect, but in many cases, evolutionary change is based on the accumulation of many mutations. I hope this help you

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What is catastrophism
scoray [572]

the theory that changes in the earth's crust during geological history have resulted chiefly from sudden violent and unusual events.

4 0
3 years ago
Drag each item to the correct location to indicate whether it describes the American or European weather model.
IRINA_888 [86]

USA model predicts weather out to 10 days, 21 forecasts, four models, whereas European model is most accurate, with 51 forecasts and weather out to 16 days.

<h3>What are weather models?</h3>

The weather models are defined as different models used to predict the weather around the world.

The Global Forecast System (GFS) model is developed by  U.S. National Weather Service and consists of four separate models (atmosphere, ocean, land/soil, sea ice).

In conclusion, USA model predicts weather out to 10 days, 21 forecasts, four models, whereas European model is most accurate, with 51 forecasts and weather out to 16 days.

Learn more about weather models here:

brainly.com/question/24099922

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3 0
2 years ago
Unstained cells have very little contrast. What single adjustment could you make to your microscope that would make cells easier
hoa [83]

Answer and Explanation:

Microscope objects have thermal profiles. These profiles differ as a purpose of their physical parameters. Most objects are sold and designed for the resolution of fixed cell microscopy.

 There is little indication that the temperature cycle affects the strain characteristics. A large box can be constructed around the microscope and heated with hot air.

The heating system's cycling causes the specimen to drift out of focus and can also change the coverslip position.

The microscope can be equilibrated to a single temperature to eliminate the movement resulting from the thermal expansion of the microscope's components.

Air currents connecting the specimen chamber should also be reduced—tight control of temperature for the entire laboratory and microscope. Any change in the temperature can lead to unwanted movement in the microscope. Heating ducts often produce localized temperature changes.

3 0
3 years ago
Jessica is traveling from Chicago, Illinois, to Miami, Florida. Using the map, tell what will happen to the land as she travels
barxatty [35]

Answer:

Option (B)

Explanation:

Chicago and Miami are both the cities in the United States, where Chicago is at a higher elevated area, whereas Miami is located in a low lying areas.

Chicago is located at an elevation of about 180 meter above the sea level, which is comparatively much higher than Miami, as Miami is at the coastal areas whose elevation is only about 2 meter above the sea level.

So, from the map it can be concluded that as Jessica travels from Chicago to Miami, it means that the elevation gradually decreases.

Thus, then correct answer is option (B).

4 0
3 years ago
Read 2 more answers
Which of the following describes the role that enzymes play in the process of metabolism?
dedylja [7]

Answer:

D

Explanation:

Enzymes are chemical catalysts they speed up/ increase the rate of the reaction by lowering the activation energy (minimum energy required for reaction to actually occur).

4 0
3 years ago
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